swift3

问题 I'm trying to get indexPath on the cell when it is tapped twice. I'm passing arguments in Selector like this but it is giving error. What is the correct format for this ? func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { if let subOptioncell : SubOptionsCollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: subOptionsCVReuseIdentifier, for: indexPath) as! SubOptionsCollectionViewCell let imageNamed = "\

问题 I'm trying to get indexPath on the cell when it is tapped twice. I'm passing arguments in Selector like this but it is giving error. What is the correct format for this ? func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { if let subOptioncell : SubOptionsCollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: subOptionsCVReuseIdentifier, for: indexPath) as! SubOptionsCollectionViewCell let imageNamed = "\

问题 I am learning Swift but I have a Variable (Followers) of type Int in ViewDidLoad, I set the value to a default of 0 . I then do a Json Request which returns 1 array and I set the value of Followers to whatever number it is inside the Json Array which is 788 . However when I do a Print afterwards the value keeps staying at 0. This is my code and it'll make more sense override func viewDidLoad() { super.viewDidLoad() var followers = 0 // Sent HTTP Request sessionn.dataTask(with:requestt,

问题 I am learning Swift but I have a Variable (Followers) of type Int in ViewDidLoad, I set the value to a default of 0 . I then do a Json Request which returns 1 array and I set the value of Followers to whatever number it is inside the Json Array which is 788 . However when I do a Print afterwards the value keeps staying at 0. This is my code and it'll make more sense override func viewDidLoad() { super.viewDidLoad() var followers = 0 // Sent HTTP Request sessionn.dataTask(with:requestt,

问题 I am learning Swift but I have a Variable (Followers) of type Int in ViewDidLoad, I set the value to a default of 0 . I then do a Json Request which returns 1 array and I set the value of Followers to whatever number it is inside the Json Array which is 788 . However when I do a Print afterwards the value keeps staying at 0. This is my code and it'll make more sense override func viewDidLoad() { super.viewDidLoad() var followers = 0 // Sent HTTP Request sessionn.dataTask(with:requestt,

问题 Recently I got the following error: Fatal Exception: NSInternalInconsistencyException Invalid update: invalid number of items in section 0. The number of items contained in an existing section after the update (13) must be equal to the number of items contained in that section before the update (12), plus or minus the number of items inserted or deleted from that section (0 inserted, 0 deleted) and plus or minus the number of items moved into or out of that section (0 moved in, 0 moved out).

问题 I am trying to create a table view such that I am able to play videos . I am able to do this using AVPlayer and layer. I want to add a custom play and pause button with a slider to the bottom of a video view. AVPlayerController comes built in with these controls. How can I implement these in AVPlayer. I have been looking for examples. But I haven't found any. Are there any GitHub examples or code samples that I can follow? Any help will be really appreciated. 回答1: here I add the points , you

问题 I am trying to create a table view such that I am able to play videos . I am able to do this using AVPlayer and layer. I want to add a custom play and pause button with a slider to the bottom of a video view. AVPlayerController comes built in with these controls. How can I implement these in AVPlayer. I have been looking for examples. But I haven't found any. Are there any GitHub examples or code samples that I can follow? Any help will be really appreciated. 回答1: here I add the points , you

问题 I want to upgrade my Xcode 7.3.1 Project to Xcode 8. My project was written in swift 2.2 in Xcode 7 but now I want to upgrade to Xcode 8 with swift 3.0. My project contains some pod-files library while upgrading to Xcode 8, I am facing lots of warning and error. Warning related to storyboard is solved but Error in pod files are not solved. Xcode tell me to convert swift syntax to latest syntax so I did it. Swift syntax error shows in pod-files. I am trying to solve pod file swift syntax error

问题 I am trying to retrieve data from firebase and display into multiple buttons and label. After retrieving i am saving it into a dictionary. This is my model import Foundation import Firebase class QuestionModel: NSObject { var CorrectAnswer: String! var Question: String! var optionA: String! var optionB: String! var optionC: String! init(snapshot: FIRDataSnapshot) { if let snapshotDict = snapshot.value as? Dictionary<String, Any> { CorrectAnswer = snapshotDict["CorrectAnswer"] as? String